public DiagnosticAnalyzersAndStates(DiagnosticIncrementalAnalyzer owner, Workspace workspace, AnalyzerManager analyzerManager)
                {
                    _owner = owner;
                    _sharedAnalyzersAndStates = new WorkspaceAnalyzersAndStates(analyzerManager);
                    _projectAnalyzersAndStatesMap = new ConcurrentDictionary<ProjectId, ProjectAnalyzersAndStates>();

                    this.Workspace = workspace;
                }

            public DiagnosticIncrementalAnalyzer(DiagnosticAnalyzerService owner, int correlationId, Workspace workspace, AnalyzerManager analyzerManager)
            {
                _owner = owner;
                _correlationId = correlationId;
                _memberRangeMap = new MemberRangeMap();
                _analyzersAndState = new DiagnosticAnalyzersAndStates(this, workspace, analyzerManager);
                _executor = new AnalyzerExecutor(this);

                _diagnosticLogAggregator = new DiagnosticLogAggregator(_owner);
            }

            public IncrementalAnalyzerDelegatee(DiagnosticAnalyzerService owner, Workspace workspace, AnalyzerManager analyzerManager)
            {
                _workspace = workspace;
                _analyzerManager = analyzerManager;
                _owner = owner;

                var v1CorrelationId = LogAggregator.GetNextId();
                _engineV1 = new EngineV1.DiagnosticIncrementalAnalyzer(_owner, v1CorrelationId, _workspace, _analyzerManager);

                var v2CorrelationId = LogAggregator.GetNextId();
                _engineV2 = new EngineV2.DiagnosticIncrementalAnalyzer(_owner, v2CorrelationId, _workspace, _analyzerManager);
            }

        internal int RunCore(TextWriter consoleOutput, ErrorLogger errorLogger, CancellationToken cancellationToken)
        {
            Debug.Assert(!Arguments.IsScriptRunner);

            cancellationToken.ThrowIfCancellationRequested();

            if (Arguments.DisplayVersion)
            {
                PrintVersion(consoleOutput);
                return Succeeded;
            }

            if (Arguments.DisplayLogo)
            {
                PrintLogo(consoleOutput);
            }

            if (Arguments.DisplayHelp)
            {
                PrintHelp(consoleOutput);
                return Succeeded;
            }

            if (ReportErrors(Arguments.Errors, consoleOutput, errorLogger))
            {
                return Failed;
            }

            var touchedFilesLogger = (Arguments.TouchedFilesPath != null) ? new TouchedFileLogger() : null;

            Compilation compilation = CreateCompilation(consoleOutput, touchedFilesLogger, errorLogger);
            if (compilation == null)
            {
                return Failed;
            }

            var diagnosticInfos = new List<DiagnosticInfo>();
            ImmutableArray<DiagnosticAnalyzer> analyzers = ResolveAnalyzersFromArguments(diagnosticInfos, MessageProvider);
            var additionalTextFiles = ResolveAdditionalFilesFromArguments(diagnosticInfos, MessageProvider, touchedFilesLogger);
            if (ReportErrors(diagnosticInfos, consoleOutput, errorLogger))
            {
                return Failed;
            }

            var diagnostics = new List<Diagnostic>();
            ImmutableArray<EmbeddedText> embeddedTexts = AcquireEmbeddedTexts(compilation, diagnostics);
            if (ReportErrors(diagnostics, consoleOutput, errorLogger))
            {
                return Failed;
            }
            
            bool reportAnalyzer = false;
            CancellationTokenSource analyzerCts = null;
            AnalyzerManager analyzerManager = null;
            AnalyzerDriver analyzerDriver = null;

            try
            {
                // Print the diagnostics produced during the parsing stage and exit if there were any errors.
                if (ReportErrors(compilation.GetParseDiagnostics(), consoleOutput, errorLogger))
                {
                    return Failed;
                }

                ConcurrentSet<Diagnostic> analyzerExceptionDiagnostics = null;

                if (!analyzers.IsEmpty)
                {
                    analyzerCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
                    analyzerManager = new AnalyzerManager();
                    analyzerExceptionDiagnostics = new ConcurrentSet<Diagnostic>();
                    Action<Diagnostic> addExceptionDiagnostic = diagnostic => analyzerExceptionDiagnostics.Add(diagnostic);
                    var analyzerOptions = new AnalyzerOptions(ImmutableArray<AdditionalText>.CastUp(additionalTextFiles));

                    analyzerDriver = AnalyzerDriver.CreateAndAttachToCompilation(compilation, analyzers, analyzerOptions, analyzerManager, addExceptionDiagnostic, Arguments.ReportAnalyzer, out compilation, analyzerCts.Token);
                    reportAnalyzer = Arguments.ReportAnalyzer && !analyzers.IsEmpty;
                }

                if (ReportErrors(compilation.GetDeclarationDiagnostics(), consoleOutput, errorLogger))
                {
                    return Failed;
                }

                cancellationToken.ThrowIfCancellationRequested();

                string outputName = GetOutputFileName(compilation, cancellationToken);
                var finalPeFilePath = Path.Combine(Arguments.OutputDirectory, outputName);
                var finalPdbFilePath = Arguments.PdbPath ?? Path.ChangeExtension(finalPeFilePath, ".pdb");
                var finalXmlFilePath = Arguments.DocumentationPath;

                var diagnosticBag = DiagnosticBag.GetInstance();
                Stream sourceLinkStreamOpt = null;

                try
                {
                    // NOTE: Unlike the PDB path, the XML doc path is not embedded in the assembly, so we don't need to pass it to emit.
                    var emitOptions = Arguments.EmitOptions.
                        WithOutputNameOverride(outputName).
                        WithPdbFilePath(finalPdbFilePath);

//.........这里部分代码省略.........

 // internal for testing purposes.
 internal DiagnosticAnalyzerService(ImmutableArray<AnalyzerReference> workspaceAnalyzers) : this()
 {
     _analyzerManager = new AnalyzerManager(workspaceAnalyzers);
 }

 /// <summary>
 /// Returns true if all the diagnostics that can be produced by this analyzer are suppressed through options.
 /// </summary>
 internal static bool IsDiagnosticAnalyzerSuppressed(
     DiagnosticAnalyzer analyzer,
     CompilationOptions options,
     AnalyzerManager analyzerManager,
     AnalyzerExecutor analyzerExecutor)
 {
     return analyzerManager.IsDiagnosticAnalyzerSuppressed(analyzer, options, IsCompilerAnalyzer, analyzerExecutor);
 }

 /// <summary>
 /// Create an analyzer driver.
 /// </summary>
 /// <param name="analyzers">The set of analyzers to include in the analysis</param>
 /// <param name="analyzerManager">AnalyzerManager to manage analyzers for analyzer host's lifetime.</param>
 protected AnalyzerDriver(ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerManager analyzerManager)
 {
     this.analyzers = analyzers;
     this.analyzerManager = analyzerManager;
 }

        /// <summary>
        /// Create an <see cref="AnalyzerDriver"/> and attach it to the given compilation. 
        /// </summary>
        /// <param name="compilation">The compilation to which the new driver should be attached.</param>
        /// <param name="analyzers">The set of analyzers to include in the analysis.</param>
        /// <param name="options">Options that are passed to analyzers.</param>
        /// <param name="analyzerManager">AnalyzerManager to manage analyzers for the lifetime of analyzer host.</param>
        /// <param name="addExceptionDiagnostic">Delegate to add diagnostics generated for exceptions from third party analyzers.</param>
        /// <param name="reportAnalyzer">Report additional information related to analyzers, such as analyzer execution time.</param>
        /// <param name="newCompilation">The new compilation with the analyzer driver attached.</param>
        /// <param name="cancellationToken">A cancellation token that can be used to abort analysis.</param>
        /// <returns>A newly created analyzer driver</returns>
        /// <remarks>
        /// Note that since a compilation is immutable, the act of creating a driver and attaching it produces
        /// a new compilation. Any further actions on the compilation should use the new compilation.
        /// </remarks>
        public static AnalyzerDriver CreateAndAttachToCompilation(
            Compilation compilation,
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerOptions options,
            AnalyzerManager analyzerManager,
            Action<Diagnostic> addExceptionDiagnostic,
            bool reportAnalyzer,
            out Compilation newCompilation,
            CancellationToken cancellationToken)
        {
            Action<Exception, DiagnosticAnalyzer, Diagnostic> onAnalyzerException =
                (ex, analyzer, diagnostic) => addExceptionDiagnostic?.Invoke(diagnostic);

            return CreateAndAttachToCompilation(compilation, analyzers, options, analyzerManager, onAnalyzerException, reportAnalyzer, out newCompilation, cancellationToken: cancellationToken);
        }

        private static async Task<AnalyzerActions> GetAnalyzerActionsAsync(
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerManager analyzerManager,
            AnalyzerExecutor analyzerExecutor)
        {
            var allAnalyzerActions = new AnalyzerActions();
            foreach (var analyzer in analyzers)
            {
                Debug.Assert(!IsDiagnosticAnalyzerSuppressed(analyzer, analyzerExecutor.Compilation.Options, analyzerManager, analyzerExecutor));

                var analyzerActions = await analyzerManager.GetAnalyzerActionsAsync(analyzer, analyzerExecutor).ConfigureAwait(false);
                if (analyzerActions != null)
                {
                    allAnalyzerActions = allAnalyzerActions.Append(analyzerActions);
                }
            }

            return allAnalyzerActions;
        }

        private static ImmutableArray<DiagnosticAnalyzer> GetUnsuppressedAnalyzers(
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerManager analyzerManager,
            AnalyzerExecutor analyzerExecutor)
        {
            var builder = ImmutableArray.CreateBuilder<DiagnosticAnalyzer>();
            foreach (var analyzer in analyzers)
            {
                if (!IsDiagnosticAnalyzerSuppressed(analyzer, analyzerExecutor.Compilation.Options, analyzerManager, analyzerExecutor))
                {
                    builder.Add(analyzer);
                }
            }

            return builder.ToImmutable();
        }

 public WorkspaceAnalyzersAndStates(AnalyzerManager analyzerManager)
 {
     _analyzerManager = analyzerManager;
     _perLanguageAnalyzersAndStatesMap = ImmutableDictionary<string, PerLanguageAnalyzersAndStates>.Empty;
 }

        /// <summary>
        /// Create an analyzer driver.
        /// </summary>
        /// <param name="analyzers">The set of analyzers to include in the analysis</param>
        /// <param name="analyzerManager">AnalyzerManager to manage analyzers for analyzer host's lifetime.</param>
        /// <param name="cancellationToken">a cancellation token that can be used to abort analysis</param>
        protected AnalyzerDriver(ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerManager analyzerManager, CancellationToken cancellationToken)
        {
            _analyzers = analyzers;
            this.analyzerManager = analyzerManager;

            this.CompilationEventQueue = new AsyncQueue<CompilationEvent>();
            this.DiagnosticQueue = new AsyncQueue<Diagnostic>();
            _queueRegistration = cancellationToken.Register(() =>
            {
                this.CompilationEventQueue.TryComplete();
                this.DiagnosticQueue.TryComplete();
            });
        }

        // internal for testing purposes
        internal static AnalyzerDriver Create(
            Compilation compilation,
            ImmutableArray<DiagnosticAnalyzer> analyzers, 
            AnalyzerOptions options, 
            AnalyzerManager analyzerManager,
            Action<Exception, DiagnosticAnalyzer, Diagnostic> onAnalyzerException,
            out Compilation newCompilation, 
            CancellationToken cancellationToken)
        {
            options = options ?? AnalyzerOptions.Empty;
            AnalyzerDriver analyzerDriver = compilation.AnalyzerForLanguage(analyzers, analyzerManager, cancellationToken);
            newCompilation = compilation.WithEventQueue(analyzerDriver.CompilationEventQueue);

            var addDiagnostic = GetDiagnosticSinkWithSuppression(analyzerDriver.DiagnosticQueue.Enqueue, newCompilation);

            Action<Exception, DiagnosticAnalyzer, Diagnostic> newOnAnalyzerException;
            if (onAnalyzerException != null)
            {
                // Wrap onAnalyzerException to pass in filtered diagnostic.
                var comp = newCompilation;
                newOnAnalyzerException = (ex, analyzer, diagnostic) => 
                    onAnalyzerException(ex, analyzer, GetFilteredDiagnostic(diagnostic, comp));
            }
            else
            {
                // Add exception diagnostic to regular diagnostic bag.
                newOnAnalyzerException = (ex, analyzer, diagnostic) => addDiagnostic(diagnostic);
            }

            // Assume all analyzers are non-thread safe.
            var singleThreadedAnalyzerToGateMap = ImmutableDictionary.CreateRange(analyzers.Select(a => KeyValuePair.Create(a, new object())));

            var analyzerExecutor = AnalyzerExecutor.Create(newCompilation, options, addDiagnostic, newOnAnalyzerException, IsCompilerAnalyzer, analyzerManager, singleThreadedAnalyzerToGateMap, cancellationToken);
            
            analyzerDriver.Initialize(newCompilation, analyzerExecutor, cancellationToken);

            return analyzerDriver;
        }

 internal override AnalyzerDriver AnalyzerForLanguage(ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerManager analyzerManager)
 {
     throw new NotImplementedException();
 }

        private static async Task<ImmutableDictionary<DiagnosticAnalyzer, GeneratedCodeAnalysisFlags>> GetGeneratedCodeAnalysisFlagsAsync(
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerManager analyzerManager,
            AnalyzerExecutor analyzerExecutor)
        {
            var builder = ImmutableDictionary.CreateBuilder<DiagnosticAnalyzer, GeneratedCodeAnalysisFlags>();
            foreach (var analyzer in analyzers)
            {
                Debug.Assert(!IsDiagnosticAnalyzerSuppressed(analyzer, analyzerExecutor.Compilation.Options, analyzerManager, analyzerExecutor));

                var generatedCodeAnalysisFlags = await analyzerManager.GetGeneratedCodeAnalysisFlagsAsync(analyzer, analyzerExecutor).ConfigureAwait(false);
                builder.Add(analyzer, generatedCodeAnalysisFlags);
            }

            return builder.ToImmutable();
        }

 /// <summary>
 /// Create an analyzer driver.
 /// </summary>
 /// <param name="analyzers">The set of analyzers to include in the analysis</param>
 /// <param name="analyzerManager">AnalyzerManager to manage analyzers for analyzer host's lifetime.</param>
 /// <param name="isComment">Delegate to identify if the given trivia is a comment.</param>
 protected AnalyzerDriver(ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerManager analyzerManager, Func<SyntaxTrivia, bool> isComment)
 {
     this.analyzers = analyzers;
     this.analyzerManager = analyzerManager;
     _isGeneratedCode = (tree, ct) => GeneratedCodeUtilities.IsGeneratedCode(tree, isComment, ct);
 }

 /// <summary>
 /// Create an analyzer driver.
 /// </summary>
 /// <param name="analyzers">The set of analyzers to include in the analysis</param>
 /// <param name="analyzerManager">AnalyzerManager to manage analyzers for analyzer host's lifetime.</param>
 /// <param name="reportDiagnosticsWithSourceSuppression">Flag to indicate if diagnostics with source suppression, i.e. <see cref="Diagnostic.IsSuppressed"/>, should be reported.</param>
 protected AnalyzerDriver(ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerManager analyzerManager, bool reportDiagnosticsWithSourceSuppression)
 {
     this.analyzers = analyzers;
     this.analyzerManager = analyzerManager;
     _reportDiagnosticsWithSourceSuppression = reportDiagnosticsWithSourceSuppression;
 }

        private static Task<AnalyzerActions> GetAnalyzerActionsAsync(
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerManager analyzerManager,
            AnalyzerExecutor analyzerExecutor)
        {
            return Task.Run(async () =>
            {
                AnalyzerActions allAnalyzerActions = new AnalyzerActions();
                foreach (var analyzer in analyzers)
                {
                    if (!IsDiagnosticAnalyzerSuppressed(analyzer, analyzerExecutor.Compilation.Options, analyzerManager, analyzerExecutor))
                    {
                        var analyzerActions = await analyzerManager.GetAnalyzerActionsAsync(analyzer, analyzerExecutor).ConfigureAwait(false);
                        if (analyzerActions != null)
                        {
                            allAnalyzerActions = allAnalyzerActions.Append(analyzerActions);
                        }
                    }
                }

                return allAnalyzerActions;
            }, analyzerExecutor.CancellationToken);
        }

        private static async Task<ImmutableDictionary<DiagnosticAnalyzer, SemaphoreSlim>> GetAnalyzerGateMapAsync(
            ImmutableArray<DiagnosticAnalyzer> analyzers,
            AnalyzerManager analyzerManager,
            AnalyzerExecutor analyzerExecutor)
        {
            var builder = ImmutableDictionary.CreateBuilder<DiagnosticAnalyzer, SemaphoreSlim>();
            foreach (var analyzer in analyzers)
            {
                var isConcurrent = await analyzerManager.IsConcurrentAnalyzerAsync(analyzer, analyzerExecutor).ConfigureAwait(false);
                if (!isConcurrent)
                {
                    // Non-concurrent analyzers need their action callbacks from the analyzer driver to be guarded by a gate.
                    var gate = new SemaphoreSlim(initialCount: 1);
                    builder.Add(analyzer, gate);
                }
            }

            return builder.ToImmutable();
        }

        private int RunCore(TextWriter consoleOutput, ErrorLogger errorLogger, CancellationToken cancellationToken)
        {
            Debug.Assert(!Arguments.IsScriptRunner);

            cancellationToken.ThrowIfCancellationRequested();

            if (Arguments.DisplayLogo)
            {
                PrintLogo(consoleOutput);
            }

            if (Arguments.DisplayHelp)
            {
                PrintHelp(consoleOutput);
                return Succeeded;
            }

            if (ReportErrors(Arguments.Errors, consoleOutput, errorLogger))
            {
                return Failed;
            }

            var touchedFilesLogger = (Arguments.TouchedFilesPath != null) ? new TouchedFileLogger() : null;

            Compilation compilation = CreateCompilation(consoleOutput, touchedFilesLogger, errorLogger);
            if (compilation == null)
            {
                return Failed;
            }


            var diagnostics = new List<DiagnosticInfo>();
            var analyzers = ResolveAnalyzersFromArguments(diagnostics, MessageProvider, touchedFilesLogger);
            var additionalTextFiles = ResolveAdditionalFilesFromArguments(diagnostics, MessageProvider, touchedFilesLogger);
            if (ReportErrors(diagnostics, consoleOutput, errorLogger))
            {
                return Failed;
            }

            cancellationToken.ThrowIfCancellationRequested();

            CancellationTokenSource analyzerCts = null;
            AnalyzerManager analyzerManager = null;
            AnalyzerDriver analyzerDriver = null;
            try
            {
                Func<ImmutableArray<Diagnostic>> getAnalyzerDiagnostics = null;
                ConcurrentSet<Diagnostic> analyzerExceptionDiagnostics = null;
                if (!analyzers.IsDefaultOrEmpty)
                {
                    analyzerCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
                    analyzerManager = new AnalyzerManager();
                    analyzerExceptionDiagnostics = new ConcurrentSet<Diagnostic>();
                    Action<Diagnostic> addExceptionDiagnostic = diagnostic => analyzerExceptionDiagnostics.Add(diagnostic);
                    var analyzerOptions = new AnalyzerOptions(ImmutableArray<AdditionalText>.CastUp(additionalTextFiles));
                    
                    analyzerDriver = AnalyzerDriver.CreateAndAttachToCompilation(compilation, analyzers, analyzerOptions, analyzerManager, addExceptionDiagnostic, Arguments.ReportAnalyzer, out compilation, analyzerCts.Token);
                    getAnalyzerDiagnostics = () => analyzerDriver.GetDiagnosticsAsync(compilation).Result;
                }

                // Print the diagnostics produced during the parsing stage and exit if there were any errors.
                if (ReportErrors(compilation.GetParseDiagnostics(), consoleOutput, errorLogger))
                {
                    return Failed;
                }

                if (ReportErrors(compilation.GetDeclarationDiagnostics(), consoleOutput, errorLogger))
                {
                    return Failed;
                }

                EmitResult emitResult;

                // NOTE: as native compiler does, we generate the documentation file
                // NOTE: 'in place', replacing the contents of the file if it exists

                string finalPeFilePath;
                string finalPdbFilePath;
                string finalXmlFilePath;

                Stream xmlStreamOpt = null;

                cancellationToken.ThrowIfCancellationRequested();

                finalXmlFilePath = Arguments.DocumentationPath;
                if (finalXmlFilePath != null)
                {
                    xmlStreamOpt = OpenFile(finalXmlFilePath, consoleOutput, PortableShim.FileMode.OpenOrCreate, PortableShim.FileAccess.Write, PortableShim.FileShare.ReadWriteBitwiseOrDelete);
                    if (xmlStreamOpt == null)
                    {
                        return Failed;
                    }

                    xmlStreamOpt.SetLength(0);
                }

                cancellationToken.ThrowIfCancellationRequested();

                IEnumerable<DiagnosticInfo> errors;
                using (var win32ResourceStreamOpt = GetWin32Resources(Arguments, compilation, out errors))
//.........这里部分代码省略.........